IP Library Granted Patent US 7,430,025
Granted Patent B2
US 7,430,025 · App. 09/934,699 · Granted Sep 30, 2008

Portable electronic device

Assignee: Semiconductor Energy Laboratory Co., Ltd.
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Quick Facts
Patent No.
US 7,430,025
App. No.
09/934,699
Granted
Sep 30, 2008
Kind
B2
Abstract

When image data is displayed on the display portion of a conventional mobile telephone, characters cannot be displayed thereon, and thus the image data and the characters cannot be simultaneously displayed. In a portable electronic device according to the present invention, a cover member having a first display device ( 101 ) for displaying an image (digital still image or the like) and a second display device ( 102 ) having a touch input operational portion (for displaying characters, symbols, or the like) are attached to each other so as to allow opening and closing.

Claims (14)

1. A portable electronic device comprising:

a cover member comprising a first display device for displaying an image;

a second display device comprising a touch input tablet;

a third display device;

a CPU electrically connected with the second display device; and

a flash memory electrically connected with the CPU,

wherein the cover member and the second display device are attached to each other to allow opening and closing with the third display device therebetween,

wherein the first display device and the second display device are an EL display device, and

wherein the third display device is a reflection liquid crystal display device, wherein the third display device is made to display by irradiating light emitted from the EL display device.

2. A portable electronic device according to claim 1 , wherein the portable electronic device has a communication function.

3. A portable electronic device according to claim 1 , wherein one of the first display device and the second display device and the third display device includes a system for identifying a user.

4. A portable electronic device according to claim 1 , wherein one of the first display device and the second display device and the third display device includes an image pickup device.

5. A portable electronic device according to claim 1 , wherein the CPU includes an image signal processing circuit, and a tablet interface for inputting a signal from the touch input tablet.

6. A portable electronic device according to claim 1 , wherein the portable electronic device is selected from the group consisting of a mobile telephone, a mobile television telephone, and a portable computer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2002
From: OKAMOTO, SATORU; YAMAZAKI, SHUNPEI
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 012470/0640 →
Priority Claims (1)
JP 2000-252717 · Aug 23, 2000 · national
Continuity (1)
Related Publication 20020063518A1 · May 30, 2002